the physics arXiv blog » Blog Archive » Memristors made into low cost, high density RRAM – This is pretty cool. It’s a brand new passive component for electronics discovered only months ago (the others being the resistor, capacitor and inductor). Memristors (from memory-resistors, geddit?) are resistors whose resistance depends on their past. In that sense they remember the past or, as an electronics engineer might put it, they store information. Obvious computer memory applications are being developed.

Popular Science](http://www.popsci.com/entertainment-amp-gaming/article/2009-01/pop-music-mystery-solved) - The opening chord to “A Hard Day’s Night” has reached an almost mythical status. For years, no one knew what it actually was. People would come close, through trial and error, watching Ed Sullivan performances, and studying advanced music theory, but no attempts ever quite captured the exact chord (until now).